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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="variadic_macro_data.vmd_detail"></a><a class="link" href="vmd_detail.html" title="Functional groups">Functional groups</a>
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<p>
      The particular constructs for which VMD has functionality can be divided into
      these categories:
    </p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
          Emptiness
        </li>
<li class="listitem">
          Identifiers
        </li>
<li class="listitem">
          Numbers
        </li>
<li class="listitem">
          Types
        </li>
<li class="listitem">
          Boost PP data types ( array, list, seq, and tuple )
        </li>
<li class="listitem">
          Sequences
        </li>
<li class="listitem">
          Additional helper variadic macros
        </li>
</ol></div>
<p>
      The first six categories delineate the data types which VMD can parse. The
      last category presents additional macros which will prove helpful for a macro
      programmer using variadic macros with VMD and Boost PP.
    </p>
<p>
      A general explanation of each of these categories will follow in the appropriate
      place in the documentation.
    </p>
<p>
      VMD macros for working with the above data types which VMD understands can
      be divided into 'specific' and 'generic' macros.
    </p>
<p>
      The specific macros ask whether some input data is a particular data type.
      The generic macros work with input data as any data type while allowing the
      programmer to separately query the type of data.
    </p>
<p>
      Both specific and generic macros have their place and the macro programmer
      can decide which to use for any given situation.
    </p>
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